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Electrical System
DIAGNOSING FREEZE CYCLE POTABLE WATER LEVEL CONTROL CIRCUITRY
Problem: Water Trough Overfilling During The Freeze Cycle
Step 1 Start a new freeze sequence by moving the ICE/OFF/CLEAN toggle switch to OFF, then back to
ICE.
Important
This restart must be done prior to performing diagnostic procedures. This assures the ice machine is not in
a freeze cycle water inlet valve safety shut-off mode. You must complete the entire diagnostic procedure
with-in 6 minutes of starting.
Step 2 Wait until the freeze cycle starts (approximately 45 seconds, the freeze cycle starts when the
compressor energizes) then connect a jumper from the water level probe to any cabinet ground.
Important
For the test to work properly you must wait until the freeze cycle starts, prior to connecting the jumper
wire. If you restart the test you must disconnect the jumper wire, restart the ice machine, (step 1) and then
reinstall the jumper wire after the compressor starts.
Step 2
WATER LEVEL LIGHT
BIN
S
WIT
C
H LI
G
HT
HARVEST/SAFETY LIMIT LIGHT
CLEAN LIGHT
GROUND
JUMPER
SV1588 SV1621G
YELLOW
GREEN
GREEN
RED
1C
1F
1G
Step 2 Jumper wire connected from probe to ground
The Water Inlet
Valve Solenoid
Coil is:
Is water flowing
into the water
trough?
The Water Level
Light is:
Cause
no on De-Energized
This is normal operation.
Do not change any parts.
yes on De-Energized
The water inlet valve is
causing the problem.
yes off Energized Proceed to step 3.
Continued on next page…